Re: Does anybody program in Java?!?!

FROM : Christopher Forsythe
DATE : Tue Oct 12 21:02:47 2004

To echo Alex here, there is a doc here titled "Don't Write Cocoa
Applications with Java" that gives you the cons of using java-cocoa.
There are some apps that use java-cocoa, I believe that Cyberduck uses
it, and Acquisition does.

http://www.bignerdranch.com/Resources/Java.html

Chris

Alexander F. Hartner wrote:

> I think that both are great languages, each with their own strength.
> Java with it's platform
> independence is great to develop applications that run anywhere. Swing
> is very powerful
> and let's you achieve a lot. Speed has improved drastically over the
> years. I can't wait for Tiger
> Java 1.5) to be release on the Mac.
>
> On the other hand Cocoa also has very nice feature, but only runs on
> the mac. This is I think
> where the problem starts. To dilute Java write once run anywhere
> proposition just to use it with
> Cocoa is a bad idea. Cocoa / Objective C is easy to learn, so why not
> use it for that. In general
> I find Cocoa / Objective C support to be much more forthcoming
> compared to Cocoa / Java. It is
> being more thoroughly tested and used.
>
> I also get the feeling that Cocoa / Java is not given the same
> priority by Apple themselves. I am very
> glad it does exist, but somehow their main focus lies in Objective C
> and Java takes a second place.
> In time this will improve, I think. Java support in X-Code has been
> improved slowly in each version.
>
> If you have a nifty Java API which you would like to use, the Java
> Bridge is very nice too, but has
> a few tricky bits. I have to say that using the Java Bridge in the
> latest version of X-Code could be
> a little improved. I would like an upgraded Project Type and not have
> to use Legacy Application
> anymore (But that is another story)
>
> My recomendation to you would be :
> - Decide what application you would like to develop. If you want to
> run on other platforms use Java / Swing.
> If you don't care about that use Cocoa / Objective C. If you don't
> want to go through the learning curve. Still
> use Java / Swing. Swing is rendered using Aqua Look and Feel in any case.
>
> I hope this helps
> alex
>
>
>
> On 12 Oct 2004, at 2:33, Stephen Vogelpohl wrote:
>

>> In pursuit to the answer of the question I posted previously, I've
>> noticed that hardly anyone answers java questions.  Does that mean
>> hardly anybody programs in java and chooses objective C instead?  I
>> can't believe that to be the case. So why is it that (seemingly) none
>> of the java related questions get answered?  And if it is true, why is
>> objective C a better way to go then Java?
>>
>> If you do know java, would you  mind answering my question (I've
>> re-pasted it below)
>>
>> I'm just getting my feet wet with Java and Cocoa and
>> have come across a blocking (but likely basic)
>> problem.  Using Interface Builder I make a simple UI
>> by just adding an NSButton object and using the drag
>> method to create an NSMatrix of 10 of them in a
>> column.  I then subclass the NSMatrix class and set
>> the "Custom Class" field of my NSMatrix buttons to be
>> this subclass.  I create the file for the NSMatrix
>> class (selecting Java of course) but make no changes
>> to the file.  I also make a subclass of NSObject which
>> will be my controller class.  I instantiate it, and
>> create it's files.  Once again, I do nothing with that
>> file.  I then do a build and run and am presented with
>> the following error message:
>>
>> 004-10-09 18:10:16.143 MyApp[863] AppKitJava: uncaught
>> exception NSArchiverArchiveInconsistency (*** file
>> inconsistency: read '@', expecting 'C')
>> 2004-10-09 18:10:16.157 MyApp[863] AppKitJava:
>> exception = *** file inconsistency: read '@',
>> expecting 'C'
>> 2004-10-09 18:10:16.159 MyApp[863] AppKitJava:
>> terminating.
>>
>> Anybody know why this is giving me problems?  If I do
>> the same thing but instead of subclassing NSMatrix, I
>> just set the custom class of  my matrix of buttons to
>> be NSMatrix, it builds and runs without a problem.  I
>> only get this error as soon as I subclass the NSMatrix
>> and set the custom class of my NSMatrix of buttons to
>> that new subclass.  I'm sure the problem is some basic
>> concept I'm not aware of.  Your help would be GREATLY
>> appreciated to get this newbie on his way to
>> java/cocoa programming greatness :-)
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